package com.tzm.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.cloud.client.circuitbreaker.CircuitBreaker;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;
import sun.security.x509.SerialNumber;

import java.util.concurrent.TimeUnit;

@Service
public class PaymentService {
    /**
     * 正常访问
     *
     * @param id
     * @return
     */
    public String paymentInfo_OK(Integer id) {
        return "线程池:  " + Thread.currentThread().getName() + "  paymentInfo_OK,id:  " + id + "\t" + "O(∩_∩)O哈哈~";
    }

    @HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHandler", commandProperties = {
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds", value = "5000")
    })
    public String paymentInfo_TimeOut(Integer id) {
        //int age = 10/0;
        //int timeNumber = 5;
        try {
            TimeUnit.MILLISECONDS.sleep(3000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return "线程池:  " + Thread.currentThread().getName() + " paymentInfo_TimeOut,id:  " + id + "\t" + "O(∩_∩)O哈哈~" + "  耗时(秒): ";
    }

    public String paymentInfo_TimeOutHandler(Integer id) {
        return "线程池:  " + Thread.currentThread().getName() + " paymentInfo_TimeOutHandler,id:  " + id + "\t" + "/(ㄒoㄒ)/~~" + "  耗时(秒): ";
    }

    //===服务熔断====
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback", commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled", value = "true"),       //是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold", value = "10"), //请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"), //时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60") //失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(@PathVariable("id") Integer id) {

        if (id < 0) {
            throw new RuntimeException("******id 不能负数");
        }
        String SerialNumber = IdUtil.simpleUUID();
        return Thread.currentThread().getName() + "\t" + "调用成功，流水号" + SerialNumber;

    }

    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id) {
        return "id 不能负数，请稍后再试，/ToT/~~ id:" + id;
    }

}
